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FGDS-2A-50V 데이터시트 PDF




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FGDS-2A-50V 데이터시트, 핀배열, 회로
MIL-STD-461 EMI INPUT FILTER
FGDS-2A-50V up to 2A CURRENT
HHi-iR-eRlel
GGrardaede
www.DataSheet4U.com
2A EMI Filter Module
9 to 50 VDC Input Range
MIL-STD-461C/D/E/F Compliant
• To comply with MIL-STD-461D/E/F power leads :
• CE 102 : Emission requirement over 10KHz to 10MHz
• CS 101 : Susceptibility requirement over 30Hz to 150KHz
• CS 114 : Susceptibility requirement over 10KHz to 400MHz
• CS 115 : Susceptibility requirement for spikes
1-General
• To comply with MIL-STD-461C power leads :
• CE 03 : Emission requirement over 15KHz to 50MHz
• CS 01 : Susceptibility requirement over 30Hz to 50KHz
• CS 02 : Susceptibility requirement over 15KHz to 400MHz
• CS 06 : Susceptibility requirement for spikes
• To comply with DO-160C/D/E/F power lines :
• Conducted emission requirement over 15KHz to 30MHz
• Conducted susceptibility requirement over 10KHz to 400MHz
• Susceptibility requirement for induced transients
The GAIA Converter filter module FGDS-2A-50V
provides a state-of-the-art product to fulfill
Electromagnetic Interferences (EMI) requirements
for Aerospace/Defence applications.
The FGDS-2A-50V complies with major standards
including :
the US MIL-STD-461 rev C, D, E and rev F
the international DO-160 rev C, D, E and rev F
In particular, the filter module is compliant with
the following requirements of MIL-STD-461 and
DO-160 standards :
• Temperature range :
• operating temperature : -40°C/+105°C case
• storage temperature : -55°C/+125°C
• RoHS process
MIL-STD-461C Part 2. & 3. requirements :
Conducted Emission (CE)
CE03, power leads, emission over
15KHz to 50MHz, narrowband, Class A1
CE03, power leads, emission over
15KHz, broadband, Class A1 curve#
1&2
Conducted Susceptibility (CS)
CS01, power leads, frequency over 30Hz
to 50KHz, class A1, consult factory
for criteria
CS02, power leads, frequency 15KHz
to 400MHz, class A1
CS06, power leads, spike #1
2-Product Selection
MIL-STD-461D/E/F Part 2. & 3. requirements :
Conducted Emission (CE)
CE102, power leads, emission over
10KHz to 10MHz, basic curve
Conducted Susceptibility (CS)
CS101, power leads, frequency 30Hz
to 150KHz, curve #1
CS114, bulk cable injection, frequency
10KHz to 400MHz
CS115, spikes, bulk cable injection,
calibrated spike
CS116, damped sinusoidal transient
DO-160-C/D/E/F requirements :
Conducted Emission (CE)
Section 21 power lines, emission over
15KHz to 30MHz, category B, AZ & LMH
Conducted Susceptibility (CS)
Section 20 power lines, frequency 10KHz
to 400MHz
6
In addition, this filter withstands in a transparent
state without dammage the transient and spike
requirements of :
MIL-STD-704A with 80V/100ms & 600V/10µs
MIL-STD-1275B with 100V/50ms & 250V/70µs
The FGDS-2A-50V is suitable for all GAIA
Converter DC/DC converters and architecture
from 4W up to 50W output power
up to 2A output current
up to 50V permanent input voltage.
FGDS-2A-50V/ option
Options :
/T : option for -55°C start up operating temperature
/S : option for screening and serialization
REDEFINING THE SOURCE OF POWER
© Gaia Converter FC05-050.01/10 Revision D
For locations, phone, fax, E-Mail see back cover




FGDS-2A-50V pdf, 반도체, 판매, 대치품
Hi-Rel
EMI Filter FGDS-2A-50V Grade
4- EMI Filter Electrical Schematics (continued)
www.DataSheet4U.com
4-4 R*C* Network Discussion
The RC damping network is a network used for stability purposes in negative input impedance systems such as DC/DC
converters.
R and C is a network whose function is to lower the filter’s output impedance.
The value of the capacitor C strongly depends on the application’s conditions (input voltage range and total power drawn
from the source) as well as the standards that the equipment has to meet MIL-STD-461C, or D/E, ... this because
measurements method (LISN) differs from one standard to another affecting the C value.
DC/DC converters are negative input impedance systems whereas a filter composed of passive elements displays a positive
output impedance to the converter. To ensure the stability of the whole system “LISN + input Filter + DC/DC converters”, the
filter output impedance must be kept below the converter’s input impedance, which is given by the following formula :
Vin2 Vin2 x η
Zin = ____ = _________
Pin Po
where :
Vin is the converter input voltage,
Pin is the converter input power,
Po is the converter output power
η is the efficiency of the converter.
As it can be seen from the preceding equation, the worst case for system’s stability is at Vinmin, so this is the condition
which should be considered for the filter design.
As the filter is made of low ESR inductors and ceramic capacitors, it has an important Q which causes a sharp increase of
the filter’s output impedance at the resonant frequency and leads to a violation of the stability criteria, causing the system
to break into oscillations.
Consequently, the values of C and R have to be adjusted to dampen sufficiently the filter’s resonance and make its
output impedance lower than the converter’s input impedance (a 10dB margin between both values is recommended).
The following formula can be used to determine the capacitor value :
C>
( LLISN + 4 .10-6 ) x Po x k
_________________________________
Vin2 x (R + RL)
6
Where :
LLISN is the LISN inductor value
Po is the filter output power
R is the capacitor esr (equivalent serial resistor) of C
RLis the input bus equivalent resistor. It is the sum of the line + LISN network + input connector resistors
k is the stability margin factor.
This factor is given by the following formula : Stability margin (dB) = 20 log (k)
Vin is the converter input voltage
© Gaia Converter FC05-050.01/10 Revision D
For locations, phone, fax, E-Mail see back cover
4

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FGDS-2A-50V 전자부품, 판매, 대치품
Hi-Rel
EMI Filter FGDS-2A-50V Grade
6- MIL-STD-461C & MIL-STD-461E Conducted Emission Level Resuwlwtws.DataSheet4U.com
MIL-STD-461C : MGDS-26-H-C with FGDS-2A-50V
MIL-STD-461E : MGDS-26-H-C with FGDS-2A-50V
MIL-STD-461C : MGDS-35-H-C with FGDS-2A-50V
MIL-STD-461E : MGDS-35-H-C with FGDS-2A-50V
6
© Gaia Converter FC05-050.01/10 Revision D
For locations, phone, fax, E-Mail see back cover
7

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